CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Current Assets:
Cash and Cash Equivalents	$ 4.4	$ 8.7	$ 8.9
Accounts Receivable, net	43.1	49.8	45.4
Accrued Revenue	35.5	38.4	28.8
Exchange Gas Receivable	9.8	11.1	10.6
Taxes Refundable	1.3
Gas Inventory	0.6	0.8	0.6
Prepayments and Other	12.9	11.7	12.2
Total Current Assets	107.6	120.5	106.5
Utility Plant:
Gas	597.7	576.8	540.2
Electric	424.0	408.4	398.4
Common	35.7	35.5	35.4
Construction Work in Progress	89.6	59.9	77.6
Total Utility Plant	1,147.0	1,080.6	1,051.6
Less: Accumulated Depreciation	286.0	271.7	269.2
Net Utility Plant	861.0	808.9	782.4
Other Noncurrent Assets:
Regulatory Assets	96.5	99.6	102.8
Other Assets	7.3	9.8	10.8
Total Other Noncurrent Assets	103.8	109.4	113.6
TOTAL ASSETS	1,072.4	1,038.8	1,002.5
Current Liabilities:
Accounts Payable	23.1	33.3	21.2
Short-Term Debt	36.9	42.0	4.1
Long-Term Debt, Current Portion	17.0	17.1	3.8
Regulatory Liabilities	13.2	15.6	28.1
Energy Supply Obligations	13.2	14.6	15.8
Environmental Obligations	0.3	1.3	5.0
Capital Lease Obligations	3.1	3.1	0.5
Interest Payable	6.3	3.4	6.3
Taxes Payable		2.4	4.9
Other Current Liabilities	13.2	11.5	11.2
Total Current Liabilities	126.3	144.3	100.9
Noncurrent Liabilities:
Retirement Benefit Obligations	127.8	124.4	122.0
Deferred Income Taxes, net	99.6	87.5	79.2
Cost of Removal Obligations	77.4	70.1	69.9
Regulatory Liabilities	3.7	8.1	11.0
Capital Lease Obligations	9.0	11.0	12.1
Environmental Obligations	2.7	1.5	0.5
Other Noncurrent Liabilities	3.8	3.6	3.5
Total Noncurrent Liabilities	324.0	306.2	298.2
Capitalization:
Long-Term Debt, Less Current Portion	335.0	305.5	325.7
Stockholders' Equity:
Common Equity (Authorized: 25,000,000 and Outstanding: 14,060,147, 13,982,941 and 13,991,430 Shares)	239.9	237.5	236.8
Retained Earnings	47.0	45.1	40.7
Total Common Stock Equity	286.9	282.6	277.5
Preferred Stock	0.2	0.2	0.2
Total Stockholders' Equity	287.1	282.8	277.7
Total Capitalization	622.1	588.3	603.4
Commitments and Contingencies (Notes 6 & 7)
TOTAL LIABILITIES AND CAPITALIZATION	$ 1,072.4	$ 1,038.8	$ 1,002.5

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.